Okay, im about fed up with this trans. Ive got a 07 LBZ with 130k on it. I got EFI Live and a transgo installed about 8 months ago. I started having hard shifting issues about a month after. I thought maybe i had a issue with the transgo so i bought another transgo jr (figured its only $80 ill just put a new one in) i had it installed but a buddy of mine that knows his shit pretty good. hes built quite a few allisons in his day. When i installed the new transgo the check ball in trim valve B on the old kit was stuck in the valve pretty good. had to hit it on the tailgate to get it out so i figured that was the issue.
We installed the new shift kit triple checking both check balls moved freely and were in place. Reset taps and it shifted and drove great for about 4 or 5 days then started to get rough again. Now it shifts rough in all tunes except stock. Stock shifts like a stock truck would. smooth as could be. My other tunes are smooth at first but seem to get more and more harsh over about 50 miles then just continues to stay rough. I have tried leaving it in one tune for a few weeks to no improvement. 4-5 and 5-6 have always been smooth. but 1-2 is sometimes rough and 2-3 and 3-4 is always almost harsh. i would say 95 % of the time it shifts rough enough to where my passengers ask whats wrong with my truck and the other 5% it shifts smooth. Also its not throwing any codes!
Thanks in advance for any input!
We installed the new shift kit triple checking both check balls moved freely and were in place. Reset taps and it shifted and drove great for about 4 or 5 days then started to get rough again. Now it shifts rough in all tunes except stock. Stock shifts like a stock truck would. smooth as could be. My other tunes are smooth at first but seem to get more and more harsh over about 50 miles then just continues to stay rough. I have tried leaving it in one tune for a few weeks to no improvement. 4-5 and 5-6 have always been smooth. but 1-2 is sometimes rough and 2-3 and 3-4 is always almost harsh. i would say 95 % of the time it shifts rough enough to where my passengers ask whats wrong with my truck and the other 5% it shifts smooth. Also its not throwing any codes!
Thanks in advance for any input!
